Penstemon procerus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon wrightii, plants in habitat. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp.?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon alpinus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp., inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, flowers (close up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon wrightii, plants in habitat. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon procerus, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp.?, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon alpinus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon palmeri, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon rupicola, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon sp., inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon cobaea, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, flowers (close up). Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon whippleanus, whole plant. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon albidus, inflorescence. Family Scrophulariaceae, Subclass Asteridae. Origin: Native
Penstemon wrightii, plants in habitat. Family Scrophulariaceae, Subclass Asteridae. Origin: Native